In terms of car design, the most original idea to come out of 1970 was a futuristic prototype by the name of Stratos 0, fruit of Bertone inspiration. It all started with the idea of mounting the engine block from a Lancia Fulvia 1.6 HF on a new base. The engine was centrally-mounted in a lowered position, and the suspensions and steering elements were designed according to a revolutionary line, breaking out of any known set moulds. The result is a flowing shape which tapers in sharply at both ends, 358 cm long and just 84 cm high. The presence of the four wheels is the only conceptual link to the contemporary idea of an automobile. The marked shaping of the wings, which accentuate the wedge-shape of the body, and the triangular motif of the roof, and air vents, all serve to underline its stylistic divide from the classic elements of car design. The technical features employed are astounding: the double side windows, the front and rear lights, and the access to the car with the entire front of the vehicle opening up to let the driver literally walk up to the driving seat. The "Stratoline" as Nuccio Bertone had initially christened it, goes beyond an exercise in design, to represent a global reworking of the actual concept of what makes a car.

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In 1969, when Nuccio Bertone bought a Lancia Fulvia from a friend and stripped it down to use as the basis for a wild, Gandini-styled concept car, the last thing he wanted was for Lancia to realise what he was up to.

Bertone’s plan was to design a futuristic, mid-engined replacement for the Fulvia – a car that was being rapidly left behind on the world rally stage by such mid-engined rivals as the Renault Alpine and Ford GT70. The problem was that Lancia favoured Pininfarina, so Bertone had to move stealthily. “If I had as much as mentioned my idea to Lancia,” he said later, “it would have been vetoed out of hand.” So it was only shortly before ‘Project Zero’ appeared at the 1970 Turin Motor Show that Bertone revealed it to Lancia… and received the Italian manufacturer’s approval.

Bertone recalled years later: “One morning late in February 1971, Ugo Gobbato, the then chairman of Lancia, telephoned me.” Gobbato wanted to see the car – and that very afternoon Bertone drove it personally to Via San Paolo, headquarters of the Lancia works racing team. “I drove up to the main gate, where an astonished Lancia gatekeeper stared motionlessly at that strange object which was so low it could pass beneath his barrier. Meanwhile the rumble of the engine [at that time a Fulvia V4] had brought all the Lancia racing team people who were waiting for us out into the yard. Then the gatekeeper raised the bar. It was an unforgettable entrance. In the middle of the crowd I switched off the engine and climbed out of my ‘spaceship’.” Bertone was rapidly signed up to build a practical rally prototype.

The prototype was very different from Project Zero. Instead of access via a hinged windscreen there were conventional doors, and the flat screen was dropped in favour of a geometrical cylinder off-cut, but the car retained an unearthly, dart-like appearance. Space travel was all the rage and it was christened Stratos.

Lancia hoped to power the Stratos with the 2.4-litre Dino V6 but there was resistance within Ferrari’s ranks – until Lancia approached Maserati with the idea of using the Bora unit. Suddenly Ferrari agreed to the deal. Suspension developments were still on-going when internal politics forced the Stratos to make its rallying debut and its 1972 outings were not a success. But by 1973 the car was starting to show form.

Meanwhile the road cars, a homologation requirement for the WRC, were hurriedly put together. Things were not helped by the Italian strikes of 1974 and the exact number of Stratoses produced is open to all the usual intrigue. Slightly fewer than 500 is likely. Meanwhile, the rally cars went on to bring Lancia victory in the WRC from 1974 to 1976, until Lancia’s untimely withdrawal from world rallying to make way for the Fiat 131 Abarth.